The year 2011 marks the 75th anniversary of the Society for the Psychological Study of Social Issues (SPSSI). One of the primary reasons SPSSI was established was the desire, on the part of its founders, to use scientific research for social action and to bring the insights of social science into national-level debates about social issues. This anniversary affords us the opportunity to examine when, where, why, and how SPSSI has been more and less successful in its efforts to impact society. Historical analyses focusing on the long-standing tension between scientific objectivity and political advocacy are used as a lens through which to examine SPSSI‘s legacy and to provide a more informed basis for future action.